†Severina parmata Egorova & Savitsky 1969

Egorova & Savitsky 1969. [Stratigraphy and biofaunas of the Cambrian of the Siberian Platform (Western Prianabar).] Trudy sib nauchno-issled Inst Geol Geofiz miner Syr'ya Pal Stratigr Ser, No. 43 1969: 1-408